Tech Jobs in Ontario, CA
172,772 open positions · Updated daily
Ontario, CA sits in the heart of Orange County, a region that blends the innovation of the Greater Los Angeles tech corridor with a more affordable lifestyle. The city’s proximity to major hubs like Irvine, Santa Ana, and the bustling downtown Los Angeles area means tech talent can tap into a diverse ecosystem of startups, established firms, and research institutions while enjoying a lower cost of living. The presence of the Ontario International Airport further fuels a strong logistics technology sector, attracting companies that need real‑time data solutions for freight and supply chain operations.
Tech companies in Ontario span several verticals. Software and web development firms such as Adobe’s regional office and Oracle’s Irvine branch thrive here, alongside biotech innovators like Genentech’s Orange County lab and Life Sciences Park startups. The city also hosts hardware manufacturers, including Intel’s manufacturing plant in nearby Santa Ana, and telecommunications leaders like T‑Mobile’s Orange County headquarters. With the University of California, Irvine nearby, research collaborations and talent pipelines flow directly into local tech teams.
Ontario’s median rent hovers around $2,500 a month, significantly below the $3,500 average in central Los Angeles, but salaries for tech roles have been rising to match the talent demand. Salary transparency is therefore essential for candidates to negotiate competitively and for employers to attract the best talent. Knowing the exact pay range for roles such as software engineers, data scientists, or product managers helps job seekers evaluate whether a position aligns with their financial goals and lifestyle needs.
HVAC Service Technicians and Installers
Company: San Jose Heating and Cooling
Location: San Jose, CA
Posted Sep 22, 2025
Valid driver's license is required; <PERSON> driver experience is beneficial. Strong mechanical knowledge with the ability to work with various tools and…
Marketing Manager
Company: Dexcom
Location: San Diego, CA
Posted Sep 22, 2025
You have the ability to develop marketing strategies that align with business objectives and drive measurable results.
Unarmed Security Officer - Encinitas, CA
Company: Bald Eagle Security Services, Inc.
Location: Encinitas, CA
Posted Sep 21, 2025
You must also bring your current California Guard Card, valid I.D., Social Security Card and any job related certification. Active cell or land line phone.
Customer Service Representative
Company: Ware Disposal, Inc
Location: Monterey Park, CA
Posted Sep 22, 2025
Valid driver’s license and personal vehicle required. Answer incoming calls and address customer inquiries regarding services, billing, and other related…
Japanese Bilingual Sales Assistant -San Diego, California
Company: Actus Consulting Group,Inc
Location: San Diego, CA
Posted Sep 22, 2025
O Follow up with agents through e-mail and phone calls. O Follow up with potential customers through e-mail and phone calls. Plan and develop systems and.
Computer System Security Analyst, COMSEC Analyst
Company: Lockheed Martin
Location: Sunnyvale, CA
Posted Sep 22, 2025
Knowledge of cleared contractor operations: computer, physical, technical and personnel security requirements. DoD 8570, IAT Level II certification (Security+).
Credentialed High School Special Education Teacher (2025-2026 school year)
Company: New West Charter School
Location: Los Angeles, CA
Posted Sep 22, 2025
Teachers must be able to use data and other indicators to identify patterns of achievement or challenges and then work with students to develop and implement…
Residential Porter (Part-Time)
Company: WasteXperts Inc
Location: Fremont, CA
Posted Sep 22, 2025
*Valid driver’s license (non-CDL) and clean driving record (no major violations in the last 3 years or more than 2 minor violations*, *including a handheld…
Certified Public Accountant (CPA) - Entry Level
Company: Fahmia, Inc
Location: Torrance, CA
Posted Sep 22, 2025
Requesting and Sorting Client Files. Acting as a Liaison between Clients, Staff, and Government Agencies. General Administrative Tasks as needed to support tax…
Registered Nurse, Primary Care
Company: Source EQ
Location: San Jose, CA
Posted Sep 22, 2025
Triage incoming patient calls and walk-ins. *Active RN license in the State of California* (required). Review and track lab results, collaborate with providers…
Staff Accountant
Company: Parkstone Companies Inc
Location: San Diego, CA
Posted Sep 22, 2025
Conduct financial analysis, including cash flow analysis, budgeting, and forecasting. Strong knowledge of financial concepts including double entry bookkeeping,…
Scenic Carpenter
Company: Chris G TV inc.
Location: Bell Gardens, CA
Posted Sep 22, 2025
*Tools:* Must own a personal tool kit, including essential tools like a hammer, screw gun, tape measure, and various hand tools.